COST COSTCO WHOLESALE CORPORATION

COM (common), issuer CIK 909832

3,879 managers (3,943 13F filers) reported a position in COST shares at 2025-09-30, 296,922,826 shares in all. 117 filers opened a position and 170 filers sold out during the quarter.

Managers: 3,879
13F filers: 3,943
New: 117
Added: 1,660
Reduced: 1,589
Sold out: 170
Shares held by filers: 296,922,826

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

The latest Form 4 transactions, non-derivative.
Owner	Date	Shares	Price	Filing
Wilcox William Richardofficer (Executive Vice President)	2026-10-13	-1,100 S	$958.205	Form 4

13F holders, Q3 2025

Filers in the available 13F reports with a share position at 2025-09-30, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

Holder	Shares	Value	% of portfolio	Change	Source
Dale Q Rice Investment Management Ltd	537	$506K	0.36%	0	13F-HR Timeline
MAGNOLIA CAPITAL ADVISORS LLC	546	$505K	0.13%	+10	13F-HR Timeline
AlphaQuest LLC	546	$505K	0.03%	+61	13F-HR Timeline
WINSLOW ASSET MANAGEMENT INC	546	$505K	0.09%	-12	13F-HR Timeline
CWS Financial Advisors, LLC	545	$505K	0.14%	0	13F-HR Timeline
Hutchens & Kramer Investment Management…	544	$504K	0.2%	-6	13F-HR Timeline
Summa Corp.	544	$504K	0.22%	+44	13F-HR Timeline
Aspen Investment Management Inc	543	$503K	0.19%	-555	13F-HR Timeline
Three Bridge Wealth Advisors, LLC	543	$503K	0.13%	-395	13F-HR Timeline
StoneCrest Wealth Management, Inc.	543	$503K	0.22%	-10	13F-HR Timeline
LANDAAS & CO /WI /ADV	542	$502K	0.11%	0	13F-HR Timeline
DAGCO, INC.	542	$502K	0.13%	-30	13F-HR Timeline
Fiduciary Wealth Partners, LLC	541	$501K	0.21%	+102	13F-HR Timeline
Western Financial Corp/CA	541	$501K	0.22%	-2,462	13F-HR Timeline
PRUDENT INVESTORS NETWORK, INC.	541	$500K	0.12%	-4	13F-HR Timeline
Worth Financial Advisory Group, LLC	541	$500K	0.28%	-26	13F-HR Timeline
Archvest Wealth Advisors, Inc.	540	$500K	0.45%	+32	13F-HR Timeline
Miramar Capital, LLC	540	$500K	0.11%	0	13F-HR Timeline
RAHLFS CAPITAL, LLC	540	$500K	0.4%	0	13F-HR Timeline
Vermillion Wealth Management, Inc.	539	$499K	0.13%	+40	13F-HR Timeline
Running Point Capital Advisors, LLC	537	$497K	0.13%	+144	13F-HR Timeline
PCG Wealth Advisors, LLC	536	$496K	0.14%	+11	13F-HR Timeline
Aletheian Wealth Advisors LLC	535	$495K	0.23%	0	13F-HR Timeline
Opal Wealth Advisors, LLC	534	$494K	0.14%	-69	13F-HR Timeline
Full Sail Capital, LLC	534	$494K	0.03%	-349	13F-HR Timeline
Unconventional Investor, LLC	532	$492K	0.25%	0	13F-HR Timeline
CVFG LLC	530	$491K	0.35%	+16	13F-HR Timeline
Hopwood Financial Services, Inc.	530	$491K	0.33%	-10	13F-HR Timeline
Mullaney, Keating & Wright, Inc.	530	$491K	0.27%	0	13F-HR Timeline
SUMMITRY LLC	530	$490K	0.02%	+210	13F-HR Timeline
ACORN CREEK CAPITAL LLC	528	$489K	0.18%	+55	13F-HR Timeline
Abel Hall, LLC	528	$489K	0.2%	+82	13F-HR Timeline
SGL Investment Advisors, Inc.	526	$488K	0.2%	+45	13F-HR Timeline
Clifford Group, LLC	525	$486K	0.38%	0	13F-HR Timeline
EIGHT 31 FINANCIAL, LLC	525	$486K	0.27%	+25	13F-HR Timeline
Accretive Wealth Partners, LLC	525	$486K	0.15%	+20	13F-HR Timeline
Blueshift Asset Management, LLC	524	$485K	0.15%	+109	13F-HR Timeline
MAS Advisors LLC	524	$485K	0.77%	0	13F-HR Timeline
Dynamic Wealth Strategies, LLC	522	$483K	0.32%	+61	13F-HR Timeline
TOWARZYSTWO FUNDUSZY INWESTYCYJNYCH PZU…	520	$481K	0.11%	+30	13F-HR Timeline
Farrell Financial LLC	520	$481K	0.3%	-2	13F-HR Timeline
Asset Allocation & Management Company, …	520	$481K	0.2%	0	13F-HR Timeline
Aspen Capital Management, LLC	519	$480K	0.12%	+28	13F-HR Timeline
SIT INVESTMENT ASSOCIATES INCin group SIT INVESTMENT ASSOCIATES INC	519	$480K	0.01%	0	13F-HR Timeline Group
Tumwater Wealth Management, LLC	518	$479K	0.21%	0	13F-HR Timeline
SSI INVESTMENT MANAGEMENT LLC	517	$479K	0.03%	0	13F-HR Timeline
Yarbrough Capital, LLC	515	$477K	0.01%	0	13F-HR Timeline
Apeiron RIA LLC	509	$477K	0.11%	-114	13F-HR Timeline
Core Wealth Advisors, Inc.	515	$477K	0.12%	+58	13F-HR Timeline
SOA Wealth Advisors, LLC.	17,778	$476K	0.08%	+161	13F-HR Timeline
Willis Johnson & Associates, Inc.	514	$476K	0.03%	-8	13F-HR Timeline
Security Financial Services, INC.	512	$474K	0.08%	+23	13F-HR Timeline
SECURITY NATIONAL BANK OF SO DAK	511	$473K	0.24%	-5	13F-HR Timeline
Rodgers & Associates, LTD	510	$472K	0.05%	-12	13F-HR Timeline
Next Level Wealth Planning, LLC	508	$471K	0.27%	+72	13F-HR Timeline
SAXON INTERESTS, INC.	499	$471K	0.18%	-65	13F-HR Timeline
OSTERWEIS CAPITAL MANAGEMENT INCin group OSTERWEIS CAPITAL MANAGEMENT …	508	$470K	0.02%	-318	13F-HR Timeline Group
PLIMOTH TRUST CO LLC	508	$470K	0.11%	-48	13F-HR Timeline
Omnia Family Wealth, LLC	508	$470K	0.15%	-36	13F-HR Timeline
MOTIVE WEALTH ADVISORS	508	$470K	0.2%	-17	13F-HR Timeline
CAP Partners, LLC	507	$470K	0.27%	0	13F-HR Timeline
Clay Northam Wealth Management, LLC	507	$469K	0.27%	-12	13F-HR Timeline
MORRIS FINANCIAL CONCEPTS, INC.	507	$469K	0.17%	-13	13F-HR Timeline
VALLEY NATIONAL ADVISERS INC	506	$468K	0.07%	-2,052	13F-HR Timeline
Cynosure Group, LLC	505	$468K	0.05%	0	13F-HR/A Timeline
CAMPBELL NEWMAN ASSET MANAGEMENT INC	505	$467K	0.03%	0	13F-HR Timeline
Smart Money Group LLC	504	$466K	0.14%	-671	13F-HR Timeline
Beirne Wealth Consulting Services, LLC	503	$466K	0.11%	new	13F-HR Timeline
Elite Financial, Inc.	510	$466K	0.21%	-54	13F-HR Timeline
KERR FINANCIAL PLANNING Corp	509	$466K	0.66%		13F-HR/A Timeline
Pathway Financial Advisors LLC	503	$466K	0.06%	new	13F-HR Timeline
Detalus Advisors, LLC	502	$465K	0.12%	-5	13F-HR Timeline
Christensen, King & Associates Investme…	502	$464K	0.2%	+21	13F-HR Timeline
Navis Wealth Advisors, LLC	501	$464K	0.35%	+127	13F-HR Timeline
Greenhouse Wealth Management, LLC	501	$464K	0.28%	+1	13F-HR Timeline
Narus Financial Partners, LLC	500	$463K	0.13%	+49	13F-HR/A Timeline
AVENIR CORP	500	$463K	0.05%	0	13F-HR Timeline
VERITY Wealth Advisors	500	$463K	0.29%	0	13F-HR Timeline
Kaufman Rossin Wealth, LLC	499	$462K	0.25%	-361	13F-HR Timeline
Planned Solutions, Inc.	499	$462K	0.16%	+10	13F-HR Timeline
WealthCollab, LLC	498	$461K	0.21%	+2	13F-HR Timeline
WALLER FINANCIAL PLANNING GROUP, INC	498	$461K	0.11%	new	13F-HR Timeline
HighMark Wealth Management LLC	487	$460K	0.2%	-14	13F-HR Timeline
Kidder Stephen W	497	$460K	0.13%	-50	13F-HR Timeline
CORNERSTONE ENTERPRISES, LLC	496	$459K	0.23%	0	13F-HR Timeline
Shulman DeMeo Asset Management LLC	494	$457K	0.11%	-3	13F-HR Timeline
FOLGER NOLAN FLEMING DOUGLAS CAPITAL MA…	494	$457K	0.05%	0	13F-HR Timeline
LWM Advisory Services, LLC	497	$457K	0.27%	+2	13F-HR Timeline
ArrowMark Colorado Holdings LLC	493	$456K	0.01%	0	13F-HR Timeline
Schaeffer Financial LLC	493	$456K	0.41%	0	13F-HR Timeline
Cloud Capital Management, LLC	492	$455K	0.24%	+19	13F-HR Timeline
HHM Wealth Advisors, LLC	491	$455K	0.05%	+50	13F-HR Timeline
Team Financial Group, LLC	491	$454K	0.21%	+1	13F-HR Timeline
Hidden Cove Wealth Management, LLC	490	$454K	0.3%	-20	13F-HR Timeline
Family Investment Center, Inc.	490	$454K	0.09%	+117	13F-HR Timeline
CAPSTONE WEALTH MANAGEMENT GROUP, LLC	489	$452K	0.19%	-42	13F-HR Timeline
Geneva Partners, LLC	488	$452K	0.17%	-10	13F-HR Timeline
CGC Financial Services, LLC	487	$451K	0.12%	0	13F-HR Timeline
BOURGEON CAPITAL MANAGEMENT LLC	487	$451K	0.08%	0	13F-HR Timeline
Great Diamond Partners, LLC	487	$451K	0.09%	-26	13F-HR Timeline
High Note Wealth, LLC	487	$451K	0.09%	+8	13F-HR Timeline
Five Pine Wealth Management	486	$450K	0.3%	0	13F-HR Timeline
AVITY INVESTMENT MANAGEMENT INC.	486	$450K	0.03%	-5	13F-HR Timeline
FreeGulliver LLC	486	$450K	0.2%	new	13F-HR Timeline
VICUS CAPITAL	486	$450K	0.03%	-42	13F-HR Timeline
Foster Victor Wealth Advisors, LLC	490	$448K	0.03%	+7	13F-HR Timeline
FOSTER & MOTLEY INC	484	$448K	0.02%	+13	13F-HR Timeline
RS CRUM INC.	483	$447K	0.1%	+5	13F-HR Timeline
Jacksonville Wealth Management, LLC	481	$446K	0.33%	+20	13F-HR Timeline
NOVEM GROUP	481	$445K	0.05%	-167	13F-HR Timeline
Raleigh Capital Management Inc.	480	$444K	0.17%	+39	13F-HR Timeline
GUERRA PAN ADVISORS, LLC	478	$442K	0.27%	0	13F-HR Timeline
THURSTON, SPRINGER, MILLER, HERD & TITA…	478	$442K	0.88%	-4,974	13F-HR Timeline
Equity Wealth Partners, LLC	478	$442K	0.36%		13F-HR Timeline
PHILLIPS FINANCIAL MANAGEMENT, LLC	477	$442K	0.03%	+51	13F-HR Timeline
Fonville Wealth Management LLC	477	$442K	0.1%	+13	13F-HR Timeline
SAGE PRIVATE WEALTH GROUP, LLC	477	$441K	0.25%	+75	13F-HR Timeline
Westshore Wealth, LLC	475	$440K	0.15%	0	13F-HR Timeline
ENDEAVOR PRIVATE WEALTH, INC.	474	$439K	0.14%	+127	13F-HR Timeline
Spectrum Wealth Advisory Group, LLC	474	$439K	0.18%	-15	13F-HR Timeline
FIRETHORN WEALTH PARTNERS, LLC	473	$438K	0.17%	+67	13F-HR Timeline
Sharkey, Howes & Javer	472	$437K	0.06%	0	13F-HR Timeline
Legacy Wealth Managment, LLC/IDin group Legacy Wealth Managment, LLC/…	472	$437K	0.2%	+49	13F-HR Timeline Group
Wick Capital Partners, LLC	472	$436K	0.1%	-1,102	13F-HR Timeline
SummitTX Capital, L.P.	471	$436K	0.02%	new	13F-HR Timeline
ERn Financial, LLC	471	$436K	0.09%	-105	13F-HR Timeline
Gordian Advisors LLC	469	$434K	0.29%	+1	13F-HR Timeline
1900 WEALTH MANAGEMENT LLC	468	$433K	0.03%	-4	13F-HR Timeline
Armor Investment Advisors, LLC	468	$433K	0.14%	0	13F-HR Timeline
Warwick Investment Management, Inc.	468	$433K	0.08%	+84	13F-HR Timeline
GSG Advisors LLC	472	$433K	0.11%	-2	13F-HR Timeline
NORTHWEST WEALTH MANAGEMENT, LLC	467	$433K	0.07%	-3	13F-HR Timeline
Stewardship Advisors, LLC	467	$432K	0.1%	+25	13F-HR Timeline
CoreFirst Bank & Trust	467	$432K	0.23%	-41	13F-HR Timeline
Johnson Bixby & Associates, LLC	466	$431K	0.06%	0	13F-HR Timeline
CAPE ANN SAVINGS BANK	465	$430K	0.23%	new	13F-HR Timeline
Meritas Wealth Management, LLC	465	$430K	0.21%	+9	13F-HR Timeline
Alliance Wealth Advisors, LLC	464	$429K	0.21%	+3	13F-HR Timeline
Cascades Capital Asset Management, LLC	464	$429K	0.19%	+87	13F-HR Timeline
Windsor Capital Management, LLC	462	$428K	0.12%	0	13F-HR Timeline
TABLEAUX LLC	460	$426K	0.17%	+230	13F-HR Timeline
Founders Capital Management	458	$424K	0.22%	0	13F-HR Timeline
Tripletail Wealth Management, LLC	468	$424K	0.5%	+2	13F-HR Timeline
Ironsides Asset Advisors, LLC	457	$423K	0.11%	0	13F-HR Timeline
Three Seasons Wealth, LLC	457	$423K	0.04%	+37	13F-HR Timeline
LeConte Wealth Management, LLC	457	$423K	0.28%	+72	13F-HR Timeline
Cottage Street Advisors LLC	456	$422K	0.18%	+112	13F-HR Timeline
WALLED LAKE PLANNING & WEALTH MANAGEMEN…	456	$422K	0.14%	0	13F-HR Timeline
Lorne Steinberg Wealth Management Inc.	456	$422K	0.1%	0	13F-HR Timeline
WBI INVESTMENTS, LLCin group WBI INVESTMENTS, LLC	456	$422K	0.11%	+253	13F-HR Timeline Group
FLAGSHIP WEALTH ADVISORS, LLC	455	$421K	0.14%	0	13F-HR Timeline
Clark Asset Management, LLC	455	$421K	0.05%	+31	13F-HR Timeline
BIRCHBROOK, INC.	455	$421K	0.22%	0	13F-HR Timeline
Curated Wealth Partners LLC	453	$419K	0.05%	-67	13F-HR Timeline
Brucke Financial, Inc.	459	$419K	0.25%	-4	13F-HR Timeline
Andina Capital Management, LLC	452	$418K	0.24%	-126	13F-HR Timeline
Perissos Private Wealth Management, LLC	452	$418K	0.3%	+1	13F-HR Timeline
OmniStar Financial Group, Inc.	451	$418K	0.25%	new	13F-HR Timeline
Bell Investment Advisors, Inc	451	$417K	0.07%	-6	13F-HR Timeline
BREAKTHRU ADVISORY SERVICES, LLC	451	$417K	0.27%	new	13F-HR Timeline
Three Magnolias Financial Advisors, LLC	451	$417K	0.26%	+151	13F-HR Timeline
Maia Wealth LLC	455	$416K	0.07%	-31	13F-HR Timeline
Novak & Powell Financial Services, Inc.	449	$416K	0.22%	0	13F-HR Timeline
PANORAMIC INVESTMENT ADVISORS, LLC	449	$416K	0.23%	-101	13F-HR Timeline
AssuredPartners Investment Advisors, LLC	449	$416K	0.09%	-17	13F-HR Timeline
Gunderson Capital Management LLC	448	$415K	0.15%	+52	13F-HR Timeline
Cambria Investment Management, L.P.	448	$415K	0.03%	+220	13F-HR/A Timeline
Bouchey Financial Group, Ltd.	448	$414K	0.03%	+7	13F-HR Timeline
ARQ WEALTH ADVISORS, LLC	447	$414K	0.12%	-134	13F-HR Timeline
Seaside Wealth Management, Inc.	446	$413K	0.12%	-7	13F-HR Timeline
BAKER TILLY WEALTH MANAGEMENT, LLC	446	$413K	0.09%	+42	13F-HR Timeline
GenTrust, LLC	446	$413K	0.02%	-287	13F-HR Timeline
Severin Investments, LLC	445	$412K	0.37%	+46	13F-HR Timeline
Mayfair Advisory Group, LLC	445	$412K	0.18%	0	13F-HR Timeline
Schrum Private Wealth Management LLC	443	$410K	0.3%	0	13F-HR Timeline
Next Level Private LLC	449	$409K	0.12%	+1	13F-HR Timeline
Affiance Financial, LLC	440	$408K	0.07%	+10	13F-HR Timeline
Northeast Financial Group, Inc.in group Northeast Financial Group, In…	440	$408K	0.1%	+119	13F-HR Timeline Group
Investment Advisory Group, LLC	440	$407K	0.11%	+14	13F-HR Timeline
Quantum Private Wealth, LLC	440	$407K	0.12%	+39	13F-HR Timeline
PENNINGTON PARTNERS & CO., LLC	439	$407K	0.19%	+32	13F-HR Timeline
Scissortail Wealth Management, LLC	439	$406K	0.09%	0	13F-HR Timeline
Ring Mountain Capital, LLC	438	$406K	0.22%	+7	13F-HR Timeline
Hollow Brook Wealth Management LLC	438	$405K	0.1%	new	13F-HR Timeline
Grange Capital, LLC	438	$405K	0.39%	0	13F-HR Timeline
Code Waechter LLC	428	$405K	0.26%	-1	13F-HR Timeline
Quarry LP	437	$405K	0.1%	+88	13F-HR Timeline
G2 CAPITAL MANAGEMENT, LLC / OH	436	$404K	0.1%	+98	13F-HR Timeline
Hickory Point Bank & Trust	436	$404K	0.3%	0	13F-HR Timeline
Charter Capital Management, LLC\DE	435	$403K	0.22%	0	13F-HR Timeline
Davidson Kahn Capital Management, LLC	435	$403K	0.22%	+14	13F-HR Timeline
Stordahl Capital Management, Inc.	435	$403K	0.08%	0	13F-HR Timeline
CROWLEY WEALTH MANAGEMENT, INC.	432	$400K	0.32%	0	13F-HR Timeline
Spectrum Planning & Advisory Services I…	432	$400K	0.23%	+8	13F-HR Timeline
Wealthstar Advisors, LLC	431	$399K	0.16%	-3	13F-HR Timeline
REXFORD CAPITAL INC	431	$399K	0.31%	+9	13F-HR Timeline
Lifestyle Asset Management, Inc.	430	$398K	0.14%	+217	13F-HR Timeline
MOULTON WEALTH MANAGEMENT, INC	428	$397K	0.29%	0	13F-HR Timeline
New World Advisors LLC	428	$396K	0.07%	-35	13F-HR Timeline
PRECEDENT WEALTH PARTNERS, LLC	427	$395K	0.09%	-65	13F-HR Timeline

Events

Wilcox William Richard sold 1,100 COST shares on 2026-10-13, Form 4 filed 2026-10-14. 0000909832-26-000098
Accepted 2026-10-14 23:00:30 UTC, ingested 2026-10-14 23:01:45 UTC